Hello,
The correct answer is D) 2
Median: To find the Median, place the numbers you are given in value order and find the middle number. Example: find the Median of {13, 23, 11, 16, 15, 10, 26}. Put them in order: {10, 11, 13, 15, 16, 23, 26} The middle number is 15, so the median is 15. (If there are two middle numbers, you average them.)
The median number of trips taken to the food store in 1 week is 2.
4 - 2 = 2
Hope this helps!!!! :)